Speaker



FIG. 1 is a front, right side, perspective view of a speaker showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof;

FIG. 8 is an enlarged view of an area labeled FIG. 8 in FIG. 1 ; and,

FIG. 9 is a reference view.

The broken lines in FIG. 9 represents environment and forms no part of the claimed design. 

CLAIM The ornamental design for a speaker, as shown and described. 